Dough-moulding machines



Aug. 5, 1969 E. s. GASKELL DOUGH-MOULDING MACHINES 4 Sheets-Sheet 1Filed Sept. 20, 1967 hr [J n-J Jim Icy Gas "t mvsmoa.

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DOUGH-MOULDI NG MACHINES Filed Sept. 20, 1967 4 Sheets-Sheet 2 11m!:AnRy Gal H .INVENTOR:

s- 5, 1969 E- s. GASK.ELL 3,459,140

DOUGH MOULDING MACHINES Filed Sept. 20, 1967 4 Sheets-Sheet 3 25 ,9 F765I za k l6 United States Patent Olfice 3,459,140 Patented Aug. 5, 19693,459,140 DOUGH-MOULDING MACHINES Edward Stanley Gaskell, Highbury,Milton Grove, Orrell Mount, Wigan, Lancashire, England Filed Sept. 20,1967, Ser. No. 669,019 Int. Cl. A21c 11/00 US. Cl. 107-9 4 ClaimsABSTRACT OF THE DISCLOSURE A dough moulding machine having a framecomprising a plurality of mould carrying bars. The mould carrying barsare of hollow closed geometric shape in cross-section and the mouldscomprise cups closely fitted to the bars.

This invention relates to dough-moulding machines and in particular tothe gyratory frames and parts thereof and is an improvement in ormodification of the invention the subject of my earlier application forpatent in United States No. 3,225,714 such parts being constructed tocarry the moulding rings or cups, hereinafter referred to generically asmoulds.

The present invention concerns an improved construction for amould-carrying frame member and frame such as described in thespecification of the aforesaid patent and is based upon the appreciationthat the hitherto open inverted channel-shaped frame members describedtherein can result in undesirable accumulation of pieces of dough in thesaid inverted channel, and that the frame assembly of the said earlierconstruction could be simplified and improved.

One object of the present invention is a simple and improvedconstruction of mould-carrying frame members and frame whichsubstantially inhibits such undesired accumulation while increasing thestrength and rigidity of attachment of the moulds.

Another object of the invention is to simplify and improve theconstruction of the frame and assembly of its parts.

According to the present invention a transverse mouldcarrying bar for adough-moulding machine having a frame, carrying a plurality of such barseach adapted to carry a plurality of dough-working moulds, said framebeing adapted to be continuously gyrated and cyclically raised andlowered characterised in that each said mouldcarrying bar is of hollowclose geometric shape in cross section and by a combined closure andmounting member at each end.

The frame members aforesaid may be tubular or may consist of a box-likeassembly of two U-shaped parts fitted one into the other; or of aU-shaped part with a lid fitted thereto.

In the accompanying drawings:

FIG. 1 is a plan and FIG. 2 is a part end elevation taken in partsection on line 2-2 of FIG. 1 of one example of a mould-carrying framefor a dough-moulding machine made in accordance with the presentinvention;

FIG. 3 is a fragmentary front elevation of part of FIG. 1;

FIG. 4 is a cross-section on line 44 of FIG. 1;

FIG. 5 is a cross-section on line 5-5 of FIG. 1;

FIGS. 6 and 7 are external elevation and plan respectively of thecup-shaped moulds shown in FIGS. 1, 2, 3 and 4;

FIG. 8 is an underneath view of the same moulds;

FIGS. 9 and 10 are part sectional elevation and plan respectively of oneend of a mould-carrying member and its attached moulds and mounting lugsmade in accordance with another example of the present invention;

FIG. 11 is an end view of the closure plug shown in FIG. 9;

FIG. 12 shows a dough-moulding ring.

As shown in FIGS. 1 to 8 the moulding frame assembly of the doughmoulding machine is rectangular and consists of side members 10 rigidlyconnected together by a tubular front member 11 and by a pair of anglemembers 12 at the rear. Between the angle members 12 are secureddough-receiving ring moulds 13, each secured by four screws 14. In frontof the angle members 12 are three mould-carrying members each consistingof an outer inverted channel-section 15 and an inner channel section 16welded together at 17 (FIG. 4) at suitable intervals avoiding thelocation of cup-shaped moulds 18 (FIG. 5) to form a hollow box sectionof closed geometric shape in cross section. Brackets '19 and 20 providemeans for attaching the moulding frame to a particular make of doughmoulding machine but form no part of this invention. The side members 10are formed with locating rebates 10a to receive top parts 21 of L-shaped mounting lugs, with depending portions 22 to which the fabricatedmould-carrying members 15, 16 are attached. At the required intervalsthe inner channel 16 is bored to receive the mounting stems 23 (FIG. 5)of the moulding cups 24, the fixing screws 25 which, when tightened,serve also to hold the frame parts tightly together in between thelengths of welding 17 (FIG. 4). As such stems are then supported in thebase of each channel part, the moulding cups or rings are more securelymounted against possible tilting or canting. The cups are formed withrectangular bosses 26 formed (FIG. 7) with rebates 27 to fit between thedepending flanges of the outer channel 15 so as to locate the cupsagainst rotation. As shown in FIGS. 8 and 5 the lower end of the cup isformed with ribs and intermediate spaces of generally epicycloidalshape. The lower'edge is reinformed by a rim 24a while the crown of thecup is formed with a plurality of vents 24b.

The dough-receiving moulds 13 (FIGS. 1 and 2) are adapted, in knownmanner to receive pieces of dough from the divider of the machine, notillustrated as it forms no part of this invention. The mould carryingmembers are adapted to be secured in the rebates of the side members 10by means of clamping bridges 28 (FIG. 2) and hand wheel nuts 29.

In a modification (not illustrated), the lower of the parts forming themould-carrying member is a U-shaped channel while the upper part is alid therefor having only shallow flanges to locate the lid within thesides of the channel and with the top extending over the edges of thechannel to complete the external rectangular shape without leaving anyledge. The longitudinal edges can of course be rounded. Strengtheningbosses may be provided at the fixing locations for the rings or cups,especially if the parts are made as die-castings.

As shown in FIGS. 9, 10 and 11, the mould-carrying members 30 are ofround tubular section in each end of which is a plug 31 formed with alocating shoulder and secured by a grub screw 32 or by Welding as in theprevious example. The plugis formed with a flat lug 33 having anelongated hole 34, such lug being complementary to a pair of lugs 35 ofan L-shaped bracket 36 the main part of which takes the place of the toppart 21 of the previously described construction. A fixing bolt 37passes through vertically elongated holes 36a in the lugs 35. Theelongated holes 34 and 36a aforesaid together enable the mould carryingbar to be adjusted longitudinally and in height. The mould cups 38 haveupstanding stems 39 of cruciform shape having a horizontal through holefor threading on to the member 30 where they are adapted to be securedby welding as shown at 40. The mouldcarrying members 30 are adapted tobe secured by bridge clamps and hand wheel nuts as described for FIGS. 1and 2.

As shown in FIG. 12 the mould may be in the form of a ring 41 formedwith internal ribs 42 and a pair of lugs 43 adapted to be secured to thetubular member 30 by welds at 44. The rings 41 can conveniently be usedto replace the cup-shaped moulds on one or more of the members 30.

The invention is obviously not limited to the examples above described,nor the manner of manufacture, for instance, the longitudinal memberscould be made from an extruded section instead of by assembly though theassembly method simplifies any machining to form the holes to receivethe stems of the dough-moulding rings or cups and also enables the partsof the assembly to be separated for cleaning. Also, the cross-sectionalshape of these members may be other than rectangular, for instance, theupper surface may be domed or sloped so that anything falling thereonwould tend to fall off, especially as the members will be gyrating withthe cups or rings. The outer surfaces of such members, especially thetop, may be provided with an anti-adhesion coating such as P.Y.F.E.which has been found to be so effective in reducing adhesion of dough tothe rings or cups.

I claim:

1. A moulding frame assembly for a dough moulding machine having a framecarrying a plurality of transverse mould-carrying bars each adapted tocarry a plurality of dough-working moulds, said frame being adapted tobe continuously gyrated and cyclically raised and lowered, each of saidmould-carrying bars being of hollow closed geometric shape incross-section, cups closely fitted to said bars in such manner that thetwo eifectively merge 2. A moulding frame assembly as claimed in claim1, wherein each said bar is constructed of two interfitting channelmembers forming a hollow box-like bar of rectangular closed geometriccross-section.

3. A moulding frame assembly as claimed in claim 2, wherein said cupsare connected to said bars by fixing screws which serve also to securesaid channel members together.

4. A moulding frame assembly as claimed in claim 1, wherein said barsare provided with depending flanges into which locate substantiallyrectangular bosses on said cups to thereby secure said cups againstrotation.

References Cited UNITED STATES PATENTS 614,797 11/1898 Dobson.

776,731 12/ 1904 Dietz. 1,948,870 2/ 1934 Pointon et a1. 2,185,9481/1-940 Pimm 28754.1 XR 2,429,252 10/ 1947 Allen 248-261 2,790,5244/1957 Herrschaft 52-731 XR 3,050,161 8/1962 Shlager 52731 XR 3,225,71412/ 1965 Gaskell 107-19 3,362,738 1/1968 Dygert et a1. 28754.1 XR

FOREIGN PATENTS 654,508 6/1963 Italy.

1,001,679 8/1965 Great Britain.

ROBERT W. MICHELL, Primary Examiner ARTHUR O. HENDERSON, AssistantExaminer US. Cl. X.R.

together, and said bars being closed at their ends by a 10719, 54

combined closure and mounting member.

